1 Answer
1

TeXnicCenter can start makeindex for you but you have to config it. There are two possibilitys for your message:

Your document needs no index but TeXnicCenter trys to build it (so there is no index file idx for makeindex).

You want an index in your document. You have no \makeindex in your tex file. Or TeXnicCenter needs some configuration. Press Alt+F7, click on LaTeX and give Makeindex the right arguments: "%tm" -s myIndex.ist. myIndex.ist contains your configuration style for makeindex.